Out of the box artefacts that read this property. Append the path to your instance URL to open the record and see how the value is used.
UI action: Apply
The Apply action’s visibility condition reads this property: setting it to true prevents the action from appearing for writable records, while any other value allows it. No default is specified; if unset, it is not true, so the condition allows the action.
/sys_ui_action.do?sys_id=1ff9e8197f2033005598baf8befa91c0
UI action: Delete
When this setting is true, the Delete action is unavailable; when it is not true, deletion is allowed if the record is writable and not published. No default is supplied, so an unset value is treated as not true.
/sys_ui_action.do?sys_id=51cabda0c72200105b9c9c7988c2600b
UI action: Optimize Route
The action is available on a valid record the user can edit unless the property is set to true; setting it to true hides or disables the action for users and admins. No default value is supplied, so the code does not specify one.
/sys_ui_action.do?sys_id=5ac4febb7f222200c57212f44efa91f7
UI action: Optimize Route
/sys_ui_action.do?sys_id=cfb566bf0b2222004502ab5c37673a14
UI action: Save
/sys_ui_action.do?sys_id=b1cbe4637f172200348ef0d8adfa91f0